Insider Ledger
GLDD insider buying and SEC filings, explained
Great Lakes Dredge & Dock CORP · CIK 1372020
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Industry (SIC)
- Heavy Construction Other Than Bldg Const - Contractors
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- Great Lakes Dredge & Dock Holdings Corp.
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$160K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Dec 10, 2025 | Planned (10b5-1) | David Johanson (SVP-Project Acquisition & Ops) sold 2,100 shares at about $13.96 ($29K), marked as a 10b5-1 plan trade. Holdings down 2% to 91,963 shares. | SEC filing Filed Dec 12, 2025 |
| Dec 3, 2025 | Planned (10b5-1) | David Johanson (SVP-Project Acquisition & Ops) sold 10,000 shares at about $13.02 ($130K), marked as a 10b5-1 plan trade. Holdings down 10% to 94,063 shares. | SEC filing Filed Dec 4, 2025 |
44 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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